hxt-relaxng-9.0.0: examples/hparser/invalid2.rng
<grammar xmlns:html="http://www.w3.org/TR/REC-html40"
xmlns="http://relaxng.org/ns/structure/1.0" >
<start>
<element name="foo">
<zeroOrMore>
<group>
<attribute name="bar"/>
<attribute name="baz"/>
</group>
</zeroOrMore>
</element>
</start>
</grammar>